Dan Drezner explains why he is "one of the 5 percent … who vote in presidential elections based on the foreign policy views of the candidates":
It’s precisely because presidents have so much more leeway to do what they want in the global realm that I now vote based on foreign policy. Mistakes in international affairs can lead to incalculable losses in blood and treasure. Paradoxically, if Americans suddenly started to vote based on national security issues, presidents would have to start to care about the domestic political consequences of their overseas actions.
Who knows, they might just start redirecting their efforts to problems at home.